Bench grinders 12 pcs wool felt polishing point cylinder bob grinding head 4mm point Highlights generic brand 12 pcs wool felt polishing point cylinder bob grinding head 4mm point Pack of 12 felt polishing heads , tips (diameter: 12mm / 10mm / 8mm / 6mm / 5mm / 4mm) and yokes (diameter: 10mm / 6mm / 4mm / 3mm) Made of high quality imported wool felt, ideal for general polishing, grinding and sculpture Versatile on many substrates, these medium density dots will work on stone, ceramics, metals, plastics, as well as jewelry, to make your polished objects smooth and shiny Popular and economical polishing choice, bonded to a arbor suitable for most rotary tools Used in conjunction with a pendant motor (point shank fits into collet/chuck of drill) and employed with compound (eg.tripoli/rouge) to polish small areas of one item Package Includes: 12pcs Felt Polishing Head Note: A different point should be used for each polishing compound. Please allow 12mm inaccuracy due to manual measurement. THANKS.